(noun) a pigsty is a place covered in mud and slop, whereas a kidsty is a place covered in children and razor scooters
Max: I'm telling you man, this is the best place to pick up chicks.
Tim: I dunno about that. This is pretty weird, Max.
Max: What do you mean?! This place is full of milves!
Tim: Yeah, but it's a total kidsty.